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seebeck:equipment:start [2011/04/26 16:12] – rachelseebeck:equipment:start [2013/06/19 17:32] – janet
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 ====== Equipment Used in the Seebeck Lab ====== ====== Equipment Used in the Seebeck Lab ======
 Here you will find information for all of the equipment used in the Seebeck Lab. Here you will find information for all of the equipment used in the Seebeck Lab.
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 +Please note that there is a new procedure for using the Seebeck/cryostat equipment. Users need to log their time in a purple notebook (notebook is placed beside cryostat). Since no body wants to ruin another person's experiment, please log in and leave a note implying the system is in use. The details of the procedure can be found in the first page of the purple notebook. 
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 ==== LabView Program ==== ==== LabView Program ====
 The [[http://www.ni.com/labview/|LabView]] program is used to gather data from the Seebeck apparatus.  A full description of the user interface can be found [[seebeck:equipment:LabView|here]]. The [[http://www.ni.com/labview/|LabView]] program is used to gather data from the Seebeck apparatus.  A full description of the user interface can be found [[seebeck:equipment:LabView|here]].
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 +There are two versions of the Seebeck program located on the desktop.  Version 8.0 uses the Keithley 195A to read the differential thermocouple voltage.  Version 8.1 uses a Tektronix DM5120 to do this.  You want to use 8.0 unless the 195A is not working.  Version 8.2 automatically converts the differential thermocouple voltage to a temperature.  Currently, it assumes RT (40 uV/K).
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 ==== Computer Instrumentation ==== ==== Computer Instrumentation ====
 Here is a list of instruments that are fed to the computer via GPIB cables: Here is a list of instruments that are fed to the computer via GPIB cables:
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   * Leybold-Haraeus RW 3 Compressor Cryo Pump (no documentation found) compresses helium through the system, effectively lowering the temperature.   * Leybold-Haraeus RW 3 Compressor Cryo Pump (no documentation found) compresses helium through the system, effectively lowering the temperature.
  
 +  * {{:seebeck:equipment:v70lp.pdf|Varian Turbo V-70 mini pumping station (with SD40 Forepump)}} evacuates the Seebeck system to pressures down to about 7.8E<sup>-7</sup> Torr. 

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